Before （enter) ______, Holmes made an examination of the door.

A.told

B.had told

C.has told

D.tells

ided to take a camping trip. Once finishing a fine meal and a bottle of wine they decided to go to sleep. A few hours before daybreak, Holmes woke up his friend and said," Watson, look up and tell .me what you see." Watson did so and said, "Why, I see millions of stars, "Holmes said, "What does this suggest to you, good friend" The doctor thought for a moment and said, "I can think of many things, Holmes...From a scientific standpoint, the millions of stars visible suggest there are millions of planets moving around those stars." "Go on," said Holmes. Watson thought for a moment more and continued," From a religious standpoint, I can see that God's works are wonderful and we are but a small part of his plan. From a weather-reporter's standpoint, from a clear sky, I think that tomorrow will be quite sunny. So tell me. Holmes, what do you think about this wonderful sight？" Holmes replied, "Watson, how foolish you are! Someone has stolen our tent!"

Where did Holmes and his friend spend for file night？

A．In a tent.

B．In a room.

C．At a hotel.

You are required to wear _______ clothing before you enter the room.

A．protect

B．protective

C．protection

D．protecting

Knock at the door, before you ________ the room.

A. enter into

B. come in

C. go to

D. enter

Knock______the door before you enter the room．

A．on

B．for

C．at

D．in

Holmes lowered him down a rope.

"Can you climb up？" shouted Holmes. "I' 11 be out before you know it!" came Watson’s reply.

But the climb wasn’t as easy as Watson had first imagined. Each hour he managed to climb 3ft—but slipped back 2ft. How long did it take Watson to get out？

A．28 hours.

B．20 hours.

C．15 hours.

D．30 hours.

A.Knocking

B.Knock

C.Knocked

D.To knock

—Are we supposed to take off our shoes before we enter？ —No, you ______.

A．shouldn't

B．needn't

C．mustn't

D．can't

A．can you

B．you can

C．should you

D．you should